EL PREFORMISMO PDF

Al preformismo si contrapponeva la teoria dell' epigenesi , secondo la quale, al contrario, l' embrione si sviluppa, a partire da un germe indifferenziato , mediante la formazione successiva delle varie parti dell' organismo [1]. Quasi contemporaneamente, dall'osservazione degli spermatozoi nel liquido seminale fatta da Antoni van Leeuwenhoek nel , nasceva la contrapposta dottrina dello spermatismo , secondo la quale l'embrione era presente nello spermatozoo, mentre l'uovo aveva la funzione di nutrirlo. Secondo Swammerdam tutti i germi preesistevano dall'inizio del mondo, essendo la Creazione un atto unico. Pertanto al momento della creazione nelle ovaie di Eva si trovavano, in miniatura, tutti gli uomini destinati a nascere fino alla fine del mondo. Lo sviluppo degli esseri viventi non era altro che svolgimento in lingua latina evolutio delle parti impacchettate nel germe, con successive mutazioni quantitative accrescimento e allungamento.

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Preformismo

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Meaning of "preformismo" in the Spanish dictionary

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